Analysis
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max time kernel
120s -
max time network
149s -
platform
windows7_x64 -
resource
win7-en-20211014 -
submitted
20-10-2021 14:28
Static task
static1
Behavioral task
behavioral1
Sample
My CV.exe
Resource
win7-en-20211014
General
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Target
My CV.exe
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Size
417KB
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MD5
dadfb843f67fb91c7c5a1ff269a937a7
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SHA1
e7fc816570212c2e22053d6525a1962b3f0b8bb6
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SHA256
bcfbfc42a78e7d28bf25e0b6d0a9bf305488d58f8eb07579c4948f2438171446
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SHA512
cb85fff98e9fb09a70de832853b068e252520fe35072e41b8a1624a46dce4614551778dcff550f684aa7775e02e361e2e79028e6ac2ef04129052b723d8e63d8
Malware Config
Extracted
nanocore
1.2.2.0
kamuchehddhgfgf.ddns.net:1187
37.0.10.22:1187
9ff0e8a4-a323-4111-bc49-0daecb63120d
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activate_away_mode
true
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backup_connection_host
37.0.10.22
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2021-07-17T00:05:39.048278936Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
-
connection_port
1187
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default_group
Default
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enable_debug_mode
true
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gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
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keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
9ff0e8a4-a323-4111-bc49-0daecb63120d
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
kamuchehddhgfgf.ddns.net
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
-
run_on_startup
false
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set_critical_process
true
-
timeout_interval
5000
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Signatures
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suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
My CV.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Service = "C:\\Program Files (x86)\\SMTP Service\\smtpsvc.exe" My CV.exe -
Processes:
My CV.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA My CV.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
My CV.exedescription pid process target process PID 1764 set thread context of 908 1764 My CV.exe My CV.exe -
Drops file in Program Files directory 2 IoCs
Processes:
My CV.exedescription ioc process File created C:\Program Files (x86)\SMTP Service\smtpsvc.exe My CV.exe File opened for modification C:\Program Files (x86)\SMTP Service\smtpsvc.exe My CV.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
My CV.exepid process 908 My CV.exe 908 My CV.exe 908 My CV.exe 908 My CV.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
My CV.exepid process 908 My CV.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
My CV.exedescription pid process Token: SeDebugPrivilege 908 My CV.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
My CV.exedescription pid process target process PID 1764 wrote to memory of 908 1764 My CV.exe My CV.exe PID 1764 wrote to memory of 908 1764 My CV.exe My CV.exe PID 1764 wrote to memory of 908 1764 My CV.exe My CV.exe PID 1764 wrote to memory of 908 1764 My CV.exe My CV.exe PID 1764 wrote to memory of 908 1764 My CV.exe My CV.exe PID 1764 wrote to memory of 908 1764 My CV.exe My CV.exe PID 1764 wrote to memory of 908 1764 My CV.exe My CV.exe PID 1764 wrote to memory of 908 1764 My CV.exe My CV.exe PID 1764 wrote to memory of 908 1764 My CV.exe My CV.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\My CV.exe"C:\Users\Admin\AppData\Local\Temp\My CV.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\My CV.exe"C:\Users\Admin\AppData\Local\Temp\My CV.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/908-70-0x00000000003D0000-0x00000000003E9000-memory.dmpFilesize
100KB
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memory/908-81-0x0000000000D30000-0x0000000000D3A000-memory.dmpFilesize
40KB
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memory/908-68-0x0000000000220000-0x0000000000225000-memory.dmpFilesize
20KB
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memory/908-82-0x0000000000EA0000-0x0000000000EC9000-memory.dmpFilesize
164KB
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memory/908-69-0x0000000004EB0000-0x0000000004EB1000-memory.dmpFilesize
4KB
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memory/908-60-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/908-61-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/908-62-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/908-63-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/908-64-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/908-65-0x000000000041E792-mapping.dmp
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memory/908-66-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/908-83-0x0000000000D50000-0x0000000000D5F000-memory.dmpFilesize
60KB
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memory/908-80-0x0000000000CE0000-0x0000000000CEF000-memory.dmpFilesize
60KB
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memory/908-74-0x0000000000750000-0x0000000000756000-memory.dmpFilesize
24KB
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memory/908-71-0x0000000000230000-0x0000000000233000-memory.dmpFilesize
12KB
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memory/908-72-0x0000000000650000-0x000000000065D000-memory.dmpFilesize
52KB
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memory/908-73-0x00000000006A0000-0x00000000006B5000-memory.dmpFilesize
84KB
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memory/908-79-0x0000000000970000-0x0000000000972000-memory.dmpFilesize
8KB
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memory/908-75-0x0000000000930000-0x000000000093C000-memory.dmpFilesize
48KB
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memory/908-76-0x0000000000940000-0x0000000000947000-memory.dmpFilesize
28KB
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memory/908-77-0x0000000000950000-0x0000000000956000-memory.dmpFilesize
24KB
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memory/908-78-0x0000000000960000-0x000000000096D000-memory.dmpFilesize
52KB
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memory/1764-54-0x0000000000FB0000-0x0000000000FB1000-memory.dmpFilesize
4KB
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memory/1764-56-0x0000000075B71000-0x0000000075B73000-memory.dmpFilesize
8KB
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memory/1764-59-0x00000000046F0000-0x0000000004744000-memory.dmpFilesize
336KB
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memory/1764-58-0x00000000005B0000-0x00000000005B7000-memory.dmpFilesize
28KB
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memory/1764-57-0x0000000004D30000-0x0000000004D31000-memory.dmpFilesize
4KB